It might also be smart to consult your doctor about the amount. Tevida Caution and Part Effects You should be very cautious using any complement which is not clear about the components or their amount. Tevida does not tell much about the components Tevida that go into it. There is the usual disclaimer that it has not been “evaluated by the FDA.” And that its not meant to “treat, cure or prevent any illness.” The disclaimer also warns to consult your doctor to prevent any healthcare issues.